Astrophysical: Magnetic fields

  • Publication
    The Magnetic Properties of an L Dwarf Derived from Simultaneous Radio, X-Ray, and Hα Observations
    We present the first simultaneous, multiwavelength observations of an L dwarf, the L3.5 candidate brown dwarf 2MASS J00361617+1821104, conducted with the Very...
  • Publication
    The Magnetic Response of the Solar Atmosphere to Umbral Flashes
    Chromospheric observations of sunspot umbrae offer an exceptional view of magnetoacoustic shock phenomena and the impact they have on the surrounding...
  • Publication
    The Magnetic Sensitivity of the Ba II D1 and D2 Lines of the Fraunhofer Spectrum
    The physical interpretation of the spectral line polarization produced by the joint action of the Hanle and Zeeman effects offers a unique opportunity to obtain...
  • Publication
    The Magnetic Sensitivity of the Stokes I Profile of the 15260 Å Line of Mn I
    The near-IR line of Mn I at 15262.7 Å has recently been proposed as a new tool for diagnosing the magnetic field strength and magnetic energy density associated...
  • Publication
    The magnetic structure of pores and sunspots derived from Advanced Stokes Polarimeter data.
    We investigate the radial variation of the magnetic field structure across sunspots, pores and azimuth centers (ACs). We define ACs as magnetic structures of...
  • Publication
    The magnetic SW Sextantis star RXJ1643.7+3402
    We present time-resolved spectroscopy and circular spectropolarimetry of the SW Sex star RXJ1643.7+3402. We find significant polarization levels exhibiting a...
  • Publication
    The Magnetized Disk-Halo Transition Region of M51
    An excellent laboratory for studying large scale magnetic fields is the grand design face-on spiral galaxy M51. Due to wavelength-dependent Faraday...
  • Publication
    The Motion of Magnetic Flux Tubes in the Convection Zone and the Subsurface Origin of Active Regions
    The rise of kink-unstable magnetic flux tubes through the solar convection zone is discussed with a view to explaining the subsurface origin of active regions...
  • Publication
    The multi-component field topology of sunspot penumbrae. A diagnostic tool for spectropolarimetric measurements
    Context: .Sunspot penumbrae harbor highly structured magnetic fields and flows. The moving flux tube model offers an explanation for several observed phenomena...